[Cfp-interest 2818] Re: CFP review of TS-4 revisions

Fred J. Tydeman tydeman at tybor.com
Mon Aug 14 13:48:07 PDT 2023


On Sun, 6 Aug 2023 08:58:54 -0700 Jim Thomas wrote:
>
>https://wiki.edg.com/pub/CFP/WebHome/cfp4r-20230806.pdf
>

Fred's comments on TS 18661-4

5.1 page 2, line 6:  Is there a problem with freestanding
implementations and <math.h> and trying to access the FP exception
flags? [C23 4.0 Conformance, paragraph 7]

6.0 page 3, line 8:  Why "may" for SNaN?

6.1 page 3, line 17: Can one get the extended functions without having
to get the extended types?  Should there be functions for _Decimal32,
_Decimal64, _Decimal128 without having to get extended types?

6.2 page 4, line 25:  Why does infinity have a higher precedence than
NaN?  What about SNaN?

6.3 page 5, line 25:  Why does infinity have a higher precedence than
NaN?  What about SNaN?

7.* Instead of sum and error, would sum and residual be better?
"error"  in the Returns section seems misleading.

7.0 page 10, line 27:  Also independent of flush-to-zero mode.



---
Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (702) 608-6093      Vice-chair of INCITS/C (ANSI "C")
Sample C17+FPCE tests: http://www.tybor.com
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